[Problem]

To provide a braking device for an automatic winding type screen device that stably brakes the automatic winding of a screen regardless of the temperature.

[Solution]

A braking device 10 for an automatic winding type screen device 1 comprises: a housing 20 that is provided inside a winding shaft 5 so as to be able to turn with the winding shaft 5 to wind up a screen 4; a sleeve 30 that is inserted into the housing 20 and is mounted to a bracket 6b so as not to be able to turn; and a mobile element 40 that can rotate with the housing 20. A first spring 60 and a second spring 70 are provided on the outer side of the sleeve 30 so as to have the mobile element 40 therebetween. The mobile element 40 twists forward on the sleeve 30 along with rotation of the housing 20, and biasing forces of the first spring 60 and the second spring 70 that expand and contact with the forward twist of the mobile element 40 brakes the rotation of the winding shaft 5.

[Problem]

To provide a braking device for an automatic winding type screen device that stably brakes the automatic winding of a screen regardless of the temperature.

[Solution]

A braking device 10 for an automatic winding type screen device 1 comprises: a housing 20 that is provided inside a winding shaft 5 so as to be able to turn with the winding shaft 5 to wind up a screen 4; a sleeve 30 that is inserted into the housing 20 and is mounted to a bracket 6b so as not to be able to turn; and a mobile element 40 that can rotate with the housing 20. A first spring 60 and a second spring 70 are provided on the outer side of the sleeve 30 so as to have the mobile element 40 therebetween. The mobile element 40 twists forward on the sleeve 30 along with rotation of the housing 20, and biasing forces of the first spring 60 and the second spring 70 that expand and contact with the forward twist of the mobile element 40 brakes the rotation of the winding shaft 5.

A break-out door sensor system is provided. In one aspect, the system includes: a door; a sensor located on the door; a trigger connected to the door and located proximate to the sensor and configured to move to an actuating position, and when in the actuating position, the trigger contacts the sensor causing the sensor to emit a signal, the trigger being biased away from the actuating position; and a camming surface on the trigger, wherein dimensions of the trigger and the trigger's location on the door with respect to the sensor including the location and dimensions of the camming surface are selected to cause the trigger to move to the actuating position when the camming surface moves against door guide forming a channel and the trigger moves out of the channel.

A break-out door sensor system is provided. In one aspect, the system includes: a door; a sensor located on the door; a trigger connected to the door and located proximate to the sensor and configured to move to an actuating position, and when in the actuating position, the trigger contacts the sensor causing the sensor to emit a signal, the trigger being biased away from the actuating position; and a camming surface on the trigger, wherein dimensions of the trigger and the trigger's location on the door with respect to the sensor including the location and dimensions of the camming surface are selected to cause the trigger to move to the actuating position when the camming surface moves against door guide forming a channel and the trigger moves out of the channel.

Methods and apparatus to control an architectural opening covering assembly are disclosed herein. An example architectural opening covering assembly includes a tube and a covering coupled to the tube such that rotation of the tube winds or unwinds the covering around the tube. A motor is operatively coupled to the tube to rotate the tube. The example architectural opening covering assembly also includes a gravitational sensor to generate tube position information based on a gravity reference. The example architectural opening covering assembly further includes a controller communicatively coupled to the motor to control the motor. The controller is to determine a position of the covering based on the tube position information.

Methods and apparatus to control an architectural opening covering assembly are disclosed herein. An example architectural opening covering assembly includes a tube and a covering coupled to the tube such that rotation of the tube winds or unwinds the covering around the tube. A motor is operatively coupled to the tube to rotate the tube. The example architectural opening covering assembly also includes a gravitational sensor to generate tube position information based on a gravity reference. The example architectural opening covering assembly further includes a controller communicatively coupled to the motor to control the motor. The controller is to determine a position of the covering based on the tube position information.

A winding apparatus for roller blinds (1) includes a winding roll (3) which supports a hanging (2) such that it is windable on and unwindable from the winding roll (3) by an actuator (9). The actuator (9) includes two steps of actuation. In a first step, actuation of the actuator (9) causes winding up and unwinding of the hanging (2). In a second step, actuation of the actuator (9) causes a gap existing between the hanging and the mounting location of the winding apparatus (1) to be decreased and increased, respectively.

A control apparatus for controlling rotation of a shaft about an axis includes a roller releasably and rotatably connected to a rear housing mount of a housing that is firmly secured to a wall, an operating cord looped on the roller, a front coupling member co-rotatably coupled with the shaft, and a rear coupling member releasably connected to the roller by a rearward resilient force of a resilient member and movable and non-rotatable relative to the front coupling member. The roller is moved, upon an excess downward pulling force, to a releasing position, where the rear coupling member is moved forwardly to release connection with the roller so as to permit removal of the roller from the housing.

A control apparatus for controlling rotation of a shaft about an axis includes a roller releasably and rotatably connected to a rear housing mount of a housing that is firmly secured to a wall, an operating cord looped on the roller, a front coupling member co-rotatably coupled with the shaft, and a rear coupling member releasably connected to the roller by a rearward resilient force of a resilient member and movable and non-rotatable relative to the front coupling member. The roller is moved, upon an excess downward pulling force, to a releasing position, where the rear coupling member is moved forwardly to release connection with the roller so as to permit removal of the roller from the housing.

Example methods and systems to indicate the status of door operations are disclosed. An example door system includes a door panel having a leading edge to be moved in a travel direction between an open position and a closed position relative to the doorframe. The door panel to block the passageway when the leading edge is at the closed position. The door panel to unblock the passageway when the leading edge is at the open position. The example door system also includes a series of lights distributed along the travel direction proximate the doorframe. The example door system further includes a controller to switch the lights between a first state and a second state to provide a visual effect of movement corresponding to the operating status of the door system.